GIS spider crane with variable supporting legs

Abstract

The invention discloses a GIS spider crane with variable supporting legs, and relates to the field of cranes, the GIS spider crane comprises a main vehicle body and a suspension arm, the outer side wall of the main vehicle body is provided with a plurality of rotating seats, one end of each rotating seat is connected with a supporting arm mechanism, and the supporting arm mechanism comprises a first supporting arm and a second supporting arm; the first supporting arm and the second supporting arm are rotationally connected through a rotating base, and the second supporting arm comprises a positioning base and a positioning supporting arm. The supporting arm mechanism is unfolded to support the main vehicle body, the second supporting arm is composed of the two positioning supporting arms, the positioning supporting arms can be unfolded, single-arm supporting in the prior art is converted into multi-arm multi-point supporting, a stable triangular supporting shape is formed, and when the second supporting arm is not unfolded, the positioning supporting arms can be unfolded to support the main vehicle body. The base plate on the base can increase the contact area of the base and the ground, the contact stability of the supporting arm mechanism and the ground is further improved, and the supporting arm mechanism can be better supported on the ground with different hardness.

Description

Technical Field

[0001] The invention relates to the field of cranes, in particular to a GIS spider crane with variable outriggers. Background Art

[0002] With the development of the economy and society, land resources in urban center areas are becoming increasingly scarce. Integrated and miniaturized equipment has become the first choice for substation construction. Fully enclosed combined electrical appliances (GIS) have the advantages of small footprint, high reliability, and low maintenance workload. They are widely used in indoor power distribution devices. The installation process of GIS auxiliary components covers equipment placement, gas chamber docking, accessory installation, vacuum treatment, gas injection, SF6 gas recovery and other links. Since it integrates multiple electrical components and is relatively large in size, it brings certain difficulties to the overall transportation and installation of the equipment. For indoor GIS auxiliary components, due to the limited working space, conventional cranes cannot directly enter the site for operation.

[0003] Therefore, spider cranes are used to carry out the corresponding lifting work for some GIS auxiliary components. The spider crane first enters the lifting position through the crawler, and then the spider crane spreads out the legs to support the entire crane, and finally the corresponding equipment lifting work is carried out.

[0004] In actual operation, the entire crane relies on the contact support between the outriggers and the bottom surface. However, in this case, the supporting surface of the crane is often only the bottom surface of the outriggers. For some ground surfaces with different hardness and softness, the outriggers will sink unevenly, thus affecting the stability of the crane and increasing the risk of rollover. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a GIS spider crane with variable legs to solve the technical problem that the uneven hardness of some ground will cause the legs to sink unevenly, thereby affecting the stability of the crane and increasing the risk of rollover.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a GIS spider crane with variable legs, comprising a main body and a boom, a plurality of rotating seats are installed on the outer side wall of the main body, one end of the rotating seat is connected to a support arm mechanism, the support arm mechanism comprises a first support arm and a second support arm, the first support arm and the second support arm are rotatably connected via a rotating seat, the second support arm comprises a positioning seat and a positioning arm, the positioning seat is rotatably connected to one end of the rotating seat, the bottom of the positioning seat is rotatably connected to the positioning arm via a rotating shaft, a group of the positioning arms are connected via a third hydraulic cylinder, the bottom of the positioning arm is rotatably connected to a base, a bottom plate is slidably provided at the bottom of the base, and the extension of the base plate and the base is controlled by a pneumatic mechanism.

[0007] The present invention is further configured such that a hydraulic mechanism is installed between the main vehicle body and the first support arm, and between the first support arm and the second support arm, and the deployment work is performed through the hydraulic mechanism.

[0008] The present invention is further configured such that the hydraulic mechanism consists of a first hydraulic cylinder and a second hydraulic cylinder, the fixed end of the first hydraulic cylinder is rotatably connected to the top of the main vehicle body, the movable end of the first hydraulic cylinder is rotatably connected to the outer wall of the first support arm, the fixed end of the second hydraulic cylinder is rotatably connected to the outer wall of the first support arm, and the movable end of the second hydraulic cylinder is rotatably connected to the outer wall of the positioning support arm.

[0009] The present invention is further configured such that a second universal joint is installed at both the fixed end and the movable end of the second hydraulic cylinder.

[0010] The present invention is further configured as follows: the pneumatic mechanism includes a telescopic cylinder, an airbag, a movable block, a pipeline, and a limit block. The telescopic cylinder is installed inside the base, and the movable end of the telescopic cylinder is connected to the top connecting block of the base plate. The base is installed inside with an airbag, and the air outlet end of the airbag is connected to the air inlet end of the telescopic cylinder through a pipeline. A group of contact surfaces of the base are all provided with movable blocks, one end of the movable block is in contact with the surface of the airbag, the side wall of the base plate is provided with a limit block, and the inner wall of the base is provided with a groove matching the limit block.

[0011] The present invention is further configured such that a first universal joint is provided between the base and the positioning arm.

[0012] The present invention is further configured such that a level is provided on each side of the main vehicle body.

[0013] The present invention is further configured such that the hydraulic mechanism and the third hydraulic cylinder are both connected to an external hydraulic oil supply mechanism via an oil pipeline.

[0014] To sum up, the present invention mainly has the following beneficial effects: the present invention supports the main vehicle body by unfolding the support arm mechanism, and the second support arm is composed of two positioning arms, which can be unfolded, thereby converting the original single-arm support in the prior art into a multi-arm multi-point support to form a stable triangular support shape, and when the second support arm is not unfolded, the bottom plate on the base can also increase the contact area between the base and the ground, further increasing the contact stability between the support arm mechanism and the ground, so that it can better provide support on grounds with varying degrees of softness and hardness. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the crane legs in the retracted state of the present invention;

[0016] Figure 2 It is a schematic diagram of the crane legs of the present invention in an unfolded state;

[0017] Figure 3 This is a schematic diagram of the retracted structure of the second support arm of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the second support arm of the present invention when it is unfolded from a first viewing angle;

[0019] Figure 5 This is a schematic diagram of the structure of the second support arm of the present invention unfolded at a second viewing angle;

[0020] Figure 6 It is a schematic diagram of the internal structure of the base of the present invention;

[0021] Figure 7 For the present invention Figure 2 A magnified view of the structure at A.

[0022] In the figure: 1. main vehicle body; 2. boom; 3. rotating seat; 4. first support arm; 5. first hydraulic cylinder; 6. second support arm; 61. positioning seat; 62. positioning support arm; 7. second hydraulic cylinder; 8. third hydraulic cylinder; 9. base; 10. first universal joint; 11. bottom plate; 12. telescopic cylinder; 13. airbag; 14. movable block; 15. pipeline; 16. limit block; 17. second universal joint; 18. spirit level. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] A GIS spider crane with variable legs, such as Figure 1-7 As shown, it includes a main vehicle body 1 and a boom 2. The boom 2 is installed on the top of the main vehicle body 1 and is used to hoist GIS auxiliary components.

[0025] A plurality of rotating seats 3 are installed on the outer side wall of the main vehicle body 1, and one end of the rotating seat 3 is connected to a support arm mechanism, which includes a first support arm 4 and a second support arm 6. The first support arm 4 and the second support arm 6 are rotatably connected via a rotating seat. The rotating seat 3 is controlled to rotate by a driving mechanism, and the support arm mechanism can be deployed at different positions through the rotation of the rotating seat 3.

[0026] Hydraulic mechanisms are installed between the main vehicle body 1 and the first support arm 4, and between the first support arm 4 and the second support arm 6. The deployment work is performed through the hydraulic mechanism. The hydraulic mechanism and the third hydraulic cylinder 8 are connected to the external hydraulic oil supply mechanism through an oil pipe. The hydraulic mechanism consists of a first hydraulic cylinder 5 and a second hydraulic cylinder 7. The fixed end of the first hydraulic cylinder 5 is rotatably connected to the top of the main vehicle body 1, and the movable end of the first hydraulic cylinder 5 is rotatably connected to the outer wall of the first support arm 4. The fixed end of the second hydraulic cylinder 7 is rotatably connected to the outer wall of the first support arm 4, and the movable end of the second hydraulic cylinder 7 is rotatably connected to the outer wall of the positioning arm 62. When it is necessary to deploy the support arm mechanism, start the first hydraulic cylinder 5 and the second hydraulic cylinder 7, so that the first support arm 4 and the second support arm 6 can be deployed to perform corresponding supporting work.

[0027] However, when the ground at the lifting position is of varying hardness and softness, it is necessary to convert each support arm mechanism from single-point support to multi-point support. The second support arm 6 includes a positioning seat 61 and a positioning arm 62. The positioning seat 61 is rotatably connected to one end of the rotating seat, and the bottom of the positioning seat 61 is rotatably connected to the positioning arm 62 via a rotating shaft. A group of positioning arms 62 are connected via a third hydraulic cylinder 8. When the third hydraulic cylinder 8 is started, the third hydraulic cylinder 8 pulls the two mutually adjacent positioning arms 62 apart to both sides. Subsequently, the two positioning arms 62 and the ground form a relatively stable triangular support structure, and the multi-point support structure has a better support effect than the original single-point support.

[0028] Further, the bottom of the positioning arm 62 is rotatably connected to the base 9, and the positioning arm 62 is supported by the base 9 in contact with the ground. A first universal joint 10 is provided between the base 9 and the positioning arm 62, and the first universal joint 10 can effectively improve the adaptability of the base 9 to the ground. A bottom plate 11 is slidably provided at the bottom of the base 9, and the bottom plate 11 and the base 9 are extended by a pneumatic mechanism. The pneumatic mechanism includes a telescopic cylinder 12, and the telescopic cylinder 12 is installed inside the base 9. The movable end of the telescopic cylinder 12 is connected to the bottom plate 11. The top connecting block is connected, and an air bag 13 is installed inside the base 9. The air outlet end of the air bag 13 is connected to the air inlet end of the telescopic cylinder 12 through a pipe 15. A group of contact surfaces of the base 9 are all provided with a movable block 14, and one end of the movable block 14 contacts the surface of the air bag 13. The side wall of the bottom plate 11 is provided with a limit block 16, and the inner wall of the base 9 is provided with a groove matched with the limit block 16. When the bottom plate 11 is extended, the contact area between the base 9 and the ground can be effectively increased, and the supporting stability of the supporting leg mechanism can be further improved;

[0029] At the same time, the bottom plate 11 is extended and retracted through the pneumatic mechanism. When the second support arm 6 is in the merged state, the movable block 14 is squeezed and moves toward the inside of the inner base 9, and squeezes the airbag 13. The gas inside the airbag 13 enters the telescopic cylinder 12 through the pipe 15 and squeezes the movable end of the telescopic cylinder 12. At the same time, the bottom plate 11 is driven to move outward, which effectively increases the contact area between the base 9 and the ground and improves the stability of the support arm mechanism when it is supported at a single point; when the second support arm 6 is in the separated state, the bottom plate 11 does not need to increase the area, and the movable block 14 is not squeezed. At this time, the airbag 13 retracts under the action of its own elasticity and draws back the gas inside the telescopic cylinder 12. At this time, the movable end of the telescopic cylinder 12 is retracted, and the bottom plate 11 is received into the inside of the base 9.

[0030] Furthermore, a second universal joint 17 is installed at both the fixed end and the movable end of the second hydraulic cylinder 7. The second universal joint 17 can effectively increase the rotation angle of the second support arm 6 so that it can adapt to different lifting positions.

[0031] Level meters 18 are provided on the sides of the main vehicle body 1. The level meters 18 can adaptively adjust the extension angle and extension position of each supporting leg mechanism according to the inclination degree of the vehicle body.

[0032] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A GIS spider crane with variable outriggers, comprising a main body (1) and a boom (2), characterized in that: The outer wall of the main vehicle body (1) is provided with a plurality of rotating seats (3), one end of the rotating seat (3) is connected with a support arm mechanism, the support arm mechanism comprises a first support arm (4) and a second support arm (6), the first support arm (4) and the second support arm (6) are rotatably connected via a rotating seat, the second support arm (6) comprises a positioning seat (61) and a positioning support arm (62), the positioning seat (61) is rotatably connected to one end of the rotating seat, the bottom of the positioning seat (61) is rotatably connected with a positioning support arm (62) via a rotating shaft, a group of the positioning support arms (62) are connected via a third hydraulic cylinder (8), the bottom of the positioning support arm (62) is rotatably connected with a base (9), the bottom of the base (9) is slidably provided with a bottom plate (11), and the bottom plate (11) and the base (9) are extended by a pneumatic mechanism.

2. A GIS spider crane with variable legs according to claim 1, characterized in that: A hydraulic mechanism is installed between the main vehicle body (1) and the first support arm (4), and between the first support arm (4) and the second support arm (6), and the deployment work is performed through the hydraulic mechanism.

3. The GIS spider crane with variable legs according to claim 2, characterized in that: The hydraulic mechanism comprises a first hydraulic cylinder (5) and a second hydraulic cylinder (7); the fixed end of the first hydraulic cylinder (5) is rotatably connected to the top of the main vehicle body (1); the movable end of the first hydraulic cylinder (5) is rotatably connected to the outer wall of the first support arm (4); the fixed end of the second hydraulic cylinder (7) is rotatably connected to the outer wall of the first support arm (4); and the movable end of the second hydraulic cylinder (7) is rotatably connected to the outer wall of the positioning support arm (62).

4. The GIS spider crane with variable legs according to claim 3, characterized in that: A second universal joint (17) is installed at both the fixed end and the movable end of the second hydraulic cylinder (7).

5. The GIS spider crane with variable legs according to claim 1, characterized in that: The pneumatic mechanism comprises a telescopic cylinder (12), an airbag (13), a movable block (14), a pipe (15), and a limit block (16). The telescopic cylinder (12) is installed inside a base (9). The movable end of the telescopic cylinder (12) is connected to a top connecting block of a bottom plate (11). The base (9) is installed inside an airbag (13). The air outlet end of the airbag (13) is connected to the air inlet end of the telescopic cylinder (12) through a pipe (15). A group of contact surfaces of the base (9) are all provided with movable blocks (14). One end of the movable block (14) contacts with a surface of the airbag (13). The side wall of the bottom plate (11) is provided with a limit block (16). The inner wall of the base (9) is provided with a groove matched with the limit block (16).

6. The GIS spider crane with variable legs according to claim 1, characterized in that: A first universal joint (10) is provided between the base (9) and the positioning arm (62).

7. The GIS spider crane with variable legs according to claim 1, characterized in that: Level meters (18) are provided on the sides of the main vehicle body (1).

8. The GIS spider crane with variable legs according to claim 2, characterized in that: The hydraulic mechanism and the third hydraulic cylinder (8) are both connected to an external hydraulic oil supply mechanism via an oil pipeline.

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